Working Bezier curves as you will find in any application.
-Scale and rotate linked handles from either end
-unlink the handles to manipulate each side separately.
Splines of Order 3 are chained together at shared points. If the points on either side of these intersections are on the same straight line with the intersection, the curve is [i]smooth[/i] at those points.
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Bézier Curves
1. Construction: [url]http://www.geogebratube.org/material/show/id/27320[/url]
2. Higher Order Curves: [url]http://www.geogebratube.org/material/show/id/27627[/url]
[b]→3. Basic Implementation[/b]
4. Weights: [url]http://www.geogebratube.org/material/show/id/28313[/url]
5. Continuous path: [url]http://www.geogebratube.org/material/show/id/81193[/url]
6. ...
